Cara Delevingne and Ashley Benson are adding fuel to the fire for those dating rumors swirling around. Things must be getting hot, as the two were seen kissing at London's Heathrow Airport on Tuesday morning!

In exclusive pictures by the Daily Mail, the Pretty Little Liars actress and the Paper Towns star are seen sharing a passionate kiss after landing in London.

The two looked beyond smitten, chatting it up and smooching as they waited for their taxi outside the airport terminal. Delevingne rocked cute cornrows and a tan jacket, while Benson sported a denim jacket, black shades and a white tee. Super cute as far as airport style goes!

But if you look really closely, you can spot a dainty necklace with the letter 'C' on Ashley's neck!

If you ask us, the necklace confirms these two are a couple. What do U guys think?

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